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Solid State Physics

Solid State Physics is the branch of physics that deals with the physical properties of solid materials, especially the electromagnetic, thermodynamic, and structural properties of crystalline solids.

813 Questions

Why should you study crystal structure?

Studying crystal structure is important as it provides valuable insights into the physical and chemical properties of materials. Understanding the arrangement of atoms within a crystal lattice helps in predicting material behavior and properties, such as strength, conductivity, and reactivity. This knowledge is crucial for various applications in fields such as materials science, chemistry, and engineering.

What is it when you turn liquid into solid?

Turning a liquid into a solid is called freezing. This process involves lowering the temperature of the liquid until it reaches its freezing point, causing the molecules to slow down and arrange into a solid structure.

Which metal conducts less heat?

The least conductive elemental metal is Neptunium (atomic number 93) with a conductivity of 0.063 W/cm·K. Plutonium (atomic number 94) is only slightly better, with a conductivity of 0.0674 W/cm·K. Note that both Neptunium and Plutonium are radioactive and members of the Actinoids.

Next in conductivity is Manganese with a conductivity of 0.0782 W/cm·K. Few people will encounter Neptunium or Plutonium, but manganese is a much more common metal and non-radioactive.

Note that sometimes some of metalloids are included with metals since they may form alloys with metals. The least conductive metalloid is Telurium with a conductivity of just 0.0235 W/cm·K. A metalloid is a chemical element with properties that are in-between or a mixture of those of metals and nonmetals, and which is considered to be difficult to classify unambiguously as either a metal or a nonmetal. There is no standard definition of a metalloid nor is there agreement as to which elements are appropriately classified as such.

Mixtures of metals, aka alloys, have conductivities somewhere in between the most and least conductive included elements, so the least conductive metals will be elemental - as will the most conductive metals.

Do all solids dissolve in liquid why?

No, not all solids dissolve in liquids. Whether a solid dissolves in a liquid depends on factors such as the nature of the solid and the liquid, the solubility of the solid in the liquid, and the temperature and pressure conditions. Solids that are insoluble do not dissolve in liquids because their intermolecular forces are too strong to be overcome by the solvent.

How fast dissolved the solid in a liquid?

The speed at which a solid dissolves in a liquid depends on factors such as the surface area of the solid, the temperature of the liquid, and the stirring/agitation of the mixture. Generally, smaller particles of solid will dissolve faster due to increased surface area for interaction. Additionally, higher temperatures and increased agitation can also speed up the dissolution process.

Why do you feel cold when you step on cemented floor?

There really is no such thing as cold but you feel that cause heat goes to wear it isn't so it leaves your body which makes you feel cold

I hope this helped cause its by a 7th grader but it's the truth I learned this at school

Is a solid a physical state of matter?

A solid is a state of matter has a definite volume and definite shape.

What is the intensity of light produced by an LED?

The intensity of light produced by an LED is typically measured in lumens. It can vary depending on the specific LED model and its design, but LEDs are generally known for producing high-intensity light output compared to traditional light sources like incandescent bulbs.

How do the particles in an amorphous solid compare to those in a crystalline solid?

In an amorphous solid, the particle arrangement on both a macroscopic and microscopic scale has no periodicity, it is literally amorphous.

On a crystalline solid, the particles arrangement is neat and ordered. There is a periodicity to the particles.

What was the need for the invention of ether?

Ether was used in the mid-19th century as a general anesthetic in surgeries before the development of modern anesthetics. The need for ether arose from the desire to perform surgeries without the extreme pain experienced by patients, making procedures more tolerable and safer for both the patient and the surgeon.

What is value of hall coefficient of ge?

The Hall coefficient of germanium typically ranges from 0.003 to 0.006 m^3/C. It is a material property that characterizes the ability of a material to conduct current perpendicular to an applied magnetic field.

What are the uses and advantages of centigrade?

The centigrade scale is commonly used for measuring temperature because it is easy to understand and widely adopted. It is advantageous as it allows for consistent and standardized temperature readings across different applications and industries, making it convenient for comparison and communication. Additionally, many scientific formulas and calculations are based on the centigrade scale, making it a practical choice for scientific research and experimentation.

What does not change in solid matter?

Physical properties can be tested without changing the substance a new substance. Color, density, volume and melting and/or boiling point are examples of physical properties that can be observed and/or tested.

Why ionic bonding is directional?

Ionic bonding is directional because it involves the transfer of electron(s) from one atom to another, leading to the formation of positively and negatively charged ions. These charged ions are held together by strong electrostatic forces of attraction, which act in specific directions between the oppositely charged ions, giving the bond a directional nature.

Why ionic bond energetically favorable between element of group 1 2 6 and 7?

It is because of the difference in electronegativies between the elements. Groups 6 and 7 typically have large electronegativities and therefore attract electrons to them, while metals generally have a low electronegativity and therefore don't hold their outer shell electrons as strongly. The difference in electronegativities has to be above 2.0 in most cases before it can be considered as an ionic bond.

Why any electric wire get suddenly cool when electric current cutoff?

Heat in an electric wire is mainly caused by the rapid movement and collision of electrons as they flow along it, when an electric current is cut off, the flow is greatly reduced causing a huge drop in temperature.

How does CO react with ZnO thin film?

When carbon monoxide (CO) reacts with a zinc oxide (ZnO) thin film, it can undergo a redox reaction where CO acts as a reducing agent while ZnO gets reduced. This reaction can lead to the formation of zinc metal and carbon dioxide as products. The specific reaction pathway and products formed depend on factors such as temperature, pressure, and the properties of the ZnO thin film.

Is iodine molecule an amorphous solid or a crystalline solid?

Iodine molecule is a crystalline solid at room temperature. It forms a lattice structure with well-defined repeating patterns.

What are the expressions for the Fermi wave vector in 1D 2D and 3D?

The Fermi wave vector expressions in 1D, 2D, and 3D are given by:

1D: k_F = (3π^2n)^(1/3) 2D: k_F = (πn)^(1/2) 3D: k_F = (3π^2n)^(1/3)

What is the relation between angular velocities of a pair of coupled gears of different radii?

The angular velocities of a pair of coupled gears are inversely proportional to their radii. This means that the gear with a larger radius will rotate more slowly than the gear with a smaller radius. The ratio of their angular velocities is equal to the ratio of their radii.

How many tera ohm is insulation resistance of air?

The insulation resistance of air is extremely high, typically in the range of hundreds of teraohms to petaohms.

Is CaCO3 a solid or liquid?

I'm pretty sure Ca is a solid at room temperature

Why the viscosity of gases increases with increase in temperature?

Using the 5 characteristics of matter. the particles simply speed up, and the atrractive forces weaken. Thus, there are mroe spaces in between and there is less friction between the particles when you pour them.